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Supporting Financial Information - Other Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest expense	$ (104)	$ (219)
Amortization of debt financing costs as interest expense	(73)	(65)
Other income (expense), net	0	6
Interest expense, net	$ (177)	$ (278)

X

- Definition

Amount of amortization expense attributable to debt issuance costs.

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Amount of the cost of borrowed funds accounted for as interest expense.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Amount of income (expense) related to nonoperating activities, classified as other.

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